151637442 has 48 divisors (see below), whose sum is σ = 350928480. Its totient is φ = 43528320.

The previous prime is 151637411. The next prime is 151637477. The reversal of 151637442 is 244736151.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8298 + ... + 19290.

It is an arithmetic number, because the mean of its divisors is an integer number (7311010).

Almost surely, 2^151637442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151637442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175464240).

151637442 is an abundant number, since it is smaller than the sum of its proper divisors (199291038).

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

151637442 is a wasteful number, since it uses less digits than its factorization.

151637442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11039 (or 11028 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 151637442 is about 12314.1155589835. The cubic root of 151637442 is about 533.2556715911.

The spelling of 151637442 in words is "one hundred fifty-one million, six hundred thirty-seven thousand, four hundred forty-two".