16251142 has 4 divisors (see below), whose sum is σ = 24376716. Its totient is φ = 8125570.

The previous prime is 16251113. The next prime is 16251149. The reversal of 16251142 is 24115261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16251149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062784 + ... + 4062787.

It is an arithmetic number, because the mean of its divisors is an integer number (6094179).

Almost surely, 2^16251142 is an apocalyptic number.

16251142 is a deficient number, since it is larger than the sum of its proper divisors (8125574).

16251142 is an equidigital number, since it uses as much as digits as its factorization.

16251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8125573.

The product of its digits is 480, while the sum is 22.

The square root of 16251142 is about 4031.2705193276. The cubic root of 16251142 is about 253.2957842932.

The spelling of 16251142 in words is "sixteen million, two hundred fifty-one thousand, one hundred forty-two".