142991037 has 12 divisors (see below), whose sum is σ = 236048800. Its totient is φ = 81709128.

The previous prime is 142991033. The next prime is 142991041. The reversal of 142991037 is 730199241.

It is an interprime number because it is at equal distance from previous prime (142991033) and next prime (142991041).

It is not a de Polignac number, because 142991037 - 2² = 142991033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142990992 and 142991010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142991033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1134787 + ... + 1134912.

Almost surely, 2^142991037 is an apocalyptic number.

It is an amenable number.

142991037 is a deficient number, since it is larger than the sum of its proper divisors (93057763).

142991037 is a wasteful number, since it uses less digits than its factorization.

142991037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269712 (or 2269709 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 142991037 is about 11957.8859753721. The cubic root of 142991037 is about 522.9212274441.

The spelling of 142991037 in words is "one hundred forty-two million, nine hundred ninety-one thousand, thirty-seven".