151997513851 has 4 divisors (see below), whose sum is σ = 151999272400. Its totient is φ = 151995755304.

The previous prime is 151997513839. The next prime is 151997513873. The reversal of 151997513851 is 158315799151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158315799151 = 151 ⋅1048449001.

It is a cyclic number.

It is not a de Polignac number, because 151997513851 - 2⁵ = 151997513819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151997513792 and 151997513801.

It is not an unprimeable number, because it can be changed into a prime (151997513951) 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, 742536 + ... + 924853.

It is an arithmetic number, because the mean of its divisors is an integer number (37999818100).

Almost surely, 2^151997513851 is an apocalyptic number.

151997513851 is a deficient number, since it is larger than the sum of its proper divisors (1758549).

151997513851 is an equidigital number, since it uses as much as digits as its factorization.

151997513851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758548.

The product of its digits is 1701000, while the sum is 55.

The spelling of 151997513851 in words is "one hundred fifty-one billion, nine hundred ninety-seven million, five hundred thirteen thousand, eight hundred fifty-one".