142157974 has 8 divisors (see below), whose sum is σ = 243699408. Its totient is φ = 60924840.

The previous prime is 142157891. The next prime is 142157989. The reversal of 142157974 is 479751241.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5077057 + ... + 5077084.

It is an arithmetic number, because the mean of its divisors is an integer number (30462426).

Almost surely, 2^142157974 is an apocalyptic number.

142157974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142157974 is a deficient number, since it is larger than the sum of its proper divisors (101541434).

142157974 is a wasteful number, since it uses less digits than its factorization.

142157974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154150.

The product of its digits is 70560, while the sum is 40.

The square root of 142157974 is about 11923.0018871088. The cubic root of 142157974 is about 521.9037392901.

It can be divided in two parts, 1421 and 57974, that added together give a palindrome (59395).

The spelling of 142157974 in words is "one hundred forty-two million, one hundred fifty-seven thousand, nine hundred seventy-four".