151401431 has 8 divisors (see below), whose sum is σ = 156837600. Its totient is φ = 145979680.

The previous prime is 151401421. The next prime is 151401449. The reversal of 151401431 is 134104151.

It is a happy number.

151401431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 151401431 - 2¹⁰ = 151400407 is a prime.

It is a super-2 number, since 2×151401431² = 45844786617695522, which 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 (151401421) 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, 20630 + ... + 26988.

It is an arithmetic number, because the mean of its divisors is an integer number (19604700).

Almost surely, 2^151401431 is an apocalyptic number.

151401431 is a deficient number, since it is larger than the sum of its proper divisors (5436169).

151401431 is an equidigital number, since it uses as much as digits as its factorization.

151401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7209.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 151401431 is about 12304.5288816760. The cubic root of 151401431 is about 532.9788719805.

Adding to 151401431 its reverse (134104151), we get a palindrome (285505582).

The spelling of 151401431 in words is "one hundred fifty-one million, four hundred one thousand, four hundred thirty-one".