63151187401 has 9 divisors (see below), whose sum is σ = 63980801703. Its totient is φ = 62332203960.

The previous prime is 63151187347. The next prime is 63151187447. The reversal of 63151187401 is 10478115136.

It is a happy number.

The square root of 63151187401 is 251299.

It is a perfect power (a square), and thus also a powerful number.

63151187401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4712959801 + 58438227600 = 68651^2 + 241740^2 .

It is not a de Polignac number, because 63151187401 - 2⁷ = 63151187273 is a prime.

It is a super-2 number, since 2×63151187401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63151887401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19851031 + ... + 19854211.

It is an arithmetic number, because the mean of its divisors is an integer number (7108977967).

Almost surely, 2^63151187401 is an apocalyptic number.

63151187401 is the 251299-th square number.

63151187401 is the 125650-th centered octagonal number.

It is an amenable number.

63151187401 is a deficient number, since it is larger than the sum of its proper divisors (829614302).

63151187401 is an frugal number, since it uses more digits than its factorization.

63151187401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520 (or 3260 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 63151187401 in words is "sixty-three billion, one hundred fifty-one million, one hundred eighty-seven thousand, four hundred one".