145115115431 has 8 divisors (see below), whose sum is σ = 170484891024. Its totient is φ = 121774921920.

The previous prime is 145115115373. The next prime is 145115115469. The reversal of 145115115431 is 134511511541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145115115431 - 2¹⁴ = 145115099047 is a prime.

It is a super-2 number, since 2×145115115431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145115115731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507395366 + ... + 507395651.

It is an arithmetic number, because the mean of its divisors is an integer number (21310611378).

Almost surely, 2^145115115431 is an apocalyptic number.

145115115431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145115115431 is a deficient number, since it is larger than the sum of its proper divisors (25369775593).

145115115431 is a wasteful number, since it uses less digits than its factorization.

145115115431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014791041.

The product of its digits is 6000, while the sum is 32.

Adding to 145115115431 its reverse (134511511541), we get a palindrome (279626626972).

The spelling of 145115115431 in words is "one hundred forty-five billion, one hundred fifteen million, one hundred fifteen thousand, four hundred thirty-one".