151241631 has 16 divisors (see below), whose sum is σ = 206082048. Its totient is φ = 98632800.

The previous prime is 151241627. The next prime is 151241683. The reversal of 151241631 is 136142151.

It is a happy number.

151241631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151241631 - 2² = 151241627 is a prime.

It is a super-2 number, since 2×151241631² = 45748061895080322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151240631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32790 + ... + 37116.

It is an arithmetic number, because the mean of its divisors is an integer number (12880128).

Almost surely, 2^151241631 is an apocalyptic number.

151241631 is a deficient number, since it is larger than the sum of its proper divisors (54840417).

151241631 is a wasteful number, since it uses less digits than its factorization.

151241631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582.

The product of its digits is 720, while the sum is 24.

The square root of 151241631 is about 12298.0336233074. The cubic root of 151241631 is about 532.7912911771.

Adding to 151241631 its reverse (136142151), we get a palindrome (287383782).

The spelling of 151241631 in words is "one hundred fifty-one million, two hundred forty-one thousand, six hundred thirty-one".