142900749 has 12 divisors (see below), whose sum is σ = 209493856. Its totient is φ = 93844872.

The previous prime is 142900741. The next prime is 142900753. The reversal of 142900749 is 947009241.

It is not a de Polignac number, because 142900749 - 2³ = 142900741 is a prime.

It is a super-2 number, since 2×142900749² = 40841248129522002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142900741) 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, 117889 + ... + 119094.

Almost surely, 2^142900749 is an apocalyptic number.

It is an amenable number.

142900749 is a deficient number, since it is larger than the sum of its proper divisors (66593107).

142900749 is a wasteful number, since it uses less digits than its factorization.

142900749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237056 (or 237053 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 142900749 is about 11954.1101299929. The cubic root of 142900749 is about 522.8111425662.

The spelling of 142900749 in words is "one hundred forty-two million, nine hundred thousand, seven hundred forty-nine".