151531430 has 16 divisors (see below), whose sum is σ = 273548880. Its totient is φ = 60436512.

The previous prime is 151531427. The next prime is 151531433. The reversal of 151531430 is 34135151.

It is an interprime number because it is at equal distance from previous prime (151531427) and next prime (151531433).

It is a junction number, because it is equal to n+sod(n) for n = 151531396 and 151531405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151531433) 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, 18365 + ... + 25304.

It is an arithmetic number, because the mean of its divisors is an integer number (17096805).

Almost surely, 2^151531430 is an apocalyptic number.

151531430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151531430 is a deficient number, since it is larger than the sum of its proper divisors (122017450).

151531430 is a wasteful number, since it uses less digits than its factorization.

151531430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44023.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 151531430 is about 12309.8103153542. The cubic root of 151531430 is about 533.1313736195.

Adding to 151531430 its reverse (34135151), we get a palindrome (185666581).

The spelling of 151531430 in words is "one hundred fifty-one million, five hundred thirty-one thousand, four hundred thirty".