1542772125 has 24 divisors (see below), whose sum is σ = 2781105912. Its totient is φ = 822811200.

The previous prime is 1542772109. The next prime is 1542772159. The reversal of 1542772125 is 5212772451.

1542772125 is a `hidden beast` number, since 1 + 542 + 77 + 21 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17791524 + 1524980601 = 4218^2 + 39051^2 .

It is not a de Polignac number, because 1542772125 - 2⁴ = 1542772109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1542772125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 684552 + ... + 686801.

It is an arithmetic number, because the mean of its divisors is an integer number (115879413).

Almost surely, 2^1542772125 is an apocalyptic number.

1542772125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1542772125 is a deficient number, since it is larger than the sum of its proper divisors (1238333787).

1542772125 is a wasteful number, since it uses less digits than its factorization.

1542772125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371374 (or 1371361 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 1542772125 is about 39278.1380032201. The cubic root of 1542772125 is about 1155.4928463960.

The spelling of 1542772125 in words is "one billion, five hundred forty-two million, seven hundred seventy-two thousand, one hundred twenty-five".