1572138 has 24 divisors (see below), whose sum is σ = 3433248. Its totient is φ = 519912.

The previous prime is 1572113. The next prime is 1572149. The reversal of 1572138 is 8312751.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2745 + ... + 3267.

It is an arithmetic number, because the mean of its divisors is an integer number (143052).

2^1572138 is an apocalyptic number.

1572138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1572138 is an abundant number, since it is smaller than the sum of its proper divisors (1861110).

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

1572138 is a wasteful number, since it uses less digits than its factorization.

1572138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 695 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1572138 is about 1253.8492732382. The cubic root of 1572138 is about 116.2778219916.

Adding to 1572138 its reverse (8312751), we get a palindrome (9884889).

The spelling of 1572138 in words is "one million, five hundred seventy-two thousand, one hundred thirty-eight".