15400154009231 has 4 divisors (see below), whose sum is σ = 15402237088992. Its totient is φ = 15398070929472.

The previous prime is 15400154009167. The next prime is 15400154009249. The reversal of 15400154009231 is 13290045100451.

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

It is a cyclic number.

It is not a de Polignac number, because 15400154009231 - 2⁶ = 15400154009167 is a prime.

It is a super-2 number, since 2×15400154009231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15400154009191 and 15400154009200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15400154009131) 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, 1041528791 + ... + 1041543576.

It is an arithmetic number, because the mean of its divisors is an integer number (3850559272248).

Almost surely, 2^{15400154009231} is an apocalyptic number.

15400154009231 is a deficient number, since it is larger than the sum of its proper divisors (2083079761).

15400154009231 is an equidigital number, since it uses as much as digits as its factorization.

15400154009231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083079760.

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 15400154009231 its reverse (13290045100451), we get a palindrome (28690199109682).

The spelling of 15400154009231 in words is "fifteen trillion, four hundred billion, one hundred fifty-four million, nine thousand, two hundred thirty-one".