2151003401 has 12 divisors (see below), whose sum is σ = 2253665232. Its totient is φ = 2052839976.

The previous prime is 2151003397. The next prime is 2151003409. The reversal of 2151003401 is 1043001512.

It is not a de Polignac number, because 2151003401 - 2² = 2151003397 is a prime.

It is a super-2 number, since 2×2151003401² = 9253631262227133602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2151003401.

It is not an unprimeable number, because it can be changed into a prime (2151003409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242690 + ... + 251396.

It is an arithmetic number, because the mean of its divisors is an integer number (187805436).

Almost surely, 2^2151003401 is an apocalyptic number.

It is an amenable number.

2151003401 is a deficient number, since it is larger than the sum of its proper divisors (102661831).

2151003401 is an equidigital number, since it uses as much as digits as its factorization.

2151003401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220 (or 9197 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2151003401 is about 46378.9111666067. The cubic root of 2151003401 is about 1290.8636327688.

Adding to 2151003401 its reverse (1043001512), we get a palindrome (3194004913).

The spelling of 2151003401 in words is "two billion, one hundred fifty-one million, three thousand, four hundred one".