151031442 has 16 divisors (see below), whose sum is σ = 311807232. Its totient is φ = 48719760.

The previous prime is 151031431. The next prime is 151031443. The reversal of 151031442 is 244130151.

It is not an unprimeable number, because it can be changed into a prime (151031443) 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, 405813 + ... + 406184.

It is an arithmetic number, because the mean of its divisors is an integer number (19487952).

Almost surely, 2^151031442 is an apocalyptic number.

151031442 is an abundant number, since it is smaller than the sum of its proper divisors (160775790).

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

151031442 is a wasteful number, since it uses less digits than its factorization.

151031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812033.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 151031442 is about 12289.4850176889. The cubic root of 151031442 is about 532.5443600771.

Adding to 151031442 its reverse (244130151), we get a palindrome (395161593).

The spelling of 151031442 in words is "one hundred fifty-one million, thirty-one thousand, four hundred forty-two".