151437994 has 8 divisors (see below), whose sum is σ = 228412548. Its totient is φ = 75300480.

The previous prime is 151437991. The next prime is 151438043. The reversal of 151437994 is 499734151.

It can be written as a sum of positive squares in 2 ways, for example, as 135140625 + 16297369 = 11625^2 + 4037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 151437994.

It is not an unprimeable number, because it can be changed into a prime (151437991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208807 + ... + 209530.

Almost surely, 2^151437994 is an apocalyptic number.

151437994 is a deficient number, since it is larger than the sum of its proper divisors (76974554).

151437994 is a wasteful number, since it uses less digits than its factorization.

151437994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418520.

The product of its digits is 136080, while the sum is 43.

The square root of 151437994 is about 12306.0145457414. The cubic root of 151437994 is about 533.0217728036.

The spelling of 151437994 in words is "one hundred fifty-one million, four hundred thirty-seven thousand, nine hundred ninety-four".