307550142 has 32 divisors (see below), whose sum is σ = 701920800. Its totient is φ = 99745344.

The previous prime is 307550137. The next prime is 307550153. The reversal of 307550142 is 241055703.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 74967 + ... + 78962.

It is an arithmetic number, because the mean of its divisors is an integer number (21935025).

Almost surely, 2^307550142 is an apocalyptic number.

307550142 is an abundant number, since it is smaller than the sum of its proper divisors (394370658).

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

307550142 is a wasteful number, since it uses less digits than its factorization.

307550142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153977 (or 153971 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 307550142 is about 17537.1075722309. The cubic root of 307550142 is about 675.0023901150.

The spelling of 307550142 in words is "three hundred seven million, five hundred fifty thousand, one hundred forty-two".