151781038 has 8 divisors (see below), whose sum is σ = 227765160. Its totient is φ = 75859320.

The previous prime is 151781033. The next prime is 151781051. The reversal of 151781038 is 830187151.

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

It is a junction number, because it is equal to n+sod(n) for n = 151780994 and 151781012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151781033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8953 + ... + 19588.

It is an arithmetic number, because the mean of its divisors is an integer number (28470645).

Almost surely, 2^151781038 is an apocalyptic number.

151781038 is a deficient number, since it is larger than the sum of its proper divisors (75984122).

151781038 is a wasteful number, since it uses less digits than its factorization.

151781038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31202.

The product of its (nonzero) digits is 6720, while the sum is 34.

The square root of 151781038 is about 12319.9447239020. The cubic root of 151781038 is about 533.4239440666.

The spelling of 151781038 in words is "one hundred fifty-one million, seven hundred eighty-one thousand, thirty-eight".