131402430 has 24 divisors (see below), whose sum is σ = 341646552. Its totient is φ = 35040624.

The previous prime is 131402419. The next prime is 131402431. The reversal of 131402430 is 34204131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131402431) 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, 729924 + ... + 730103.

It is an arithmetic number, because the mean of its divisors is an integer number (14235273).

Almost surely, 2^131402430 is an apocalyptic number.

131402430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131402430 is an abundant number, since it is smaller than the sum of its proper divisors (210244122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131402430 is a wasteful number, since it uses less digits than its factorization.

131402430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460040 (or 1460037 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 131402430 is about 11463.0898975800. The cubic root of 131402430 is about 508.3948379103.

Adding to 131402430 its reverse (34204131), we get a palindrome (165606561).

The spelling of 131402430 in words is "one hundred thirty-one million, four hundred two thousand, four hundred thirty".