63151901 has 4 divisors (see below), whose sum is σ = 63168252. Its totient is φ = 63135552.

The previous prime is 63151861. The next prime is 63151903. The reversal of 63151901 is 10915136.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51768025 + 11383876 = 7195^2 + 3374^2 .

It is a cyclic number.

It is not a de Polignac number, because 63151901 - 2²² = 58957597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63151903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (15792063).

Almost surely, 2^63151901 is an apocalyptic number.

It is an amenable number.

63151901 is a deficient number, since it is larger than the sum of its proper divisors (16351).

63151901 is a wasteful number, since it uses less digits than its factorization.

63151901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16350.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 63151901 is about 7946.8170357697. The cubic root of 63151901 is about 398.2252645138.

The spelling of 63151901 in words is "sixty-three million, one hundred fifty-one thousand, nine hundred one".