1542772105 has 12 divisors (see below), whose sum is σ = 2153584260. Its totient is φ = 1057900704.

The previous prime is 1542772093. The next prime is 1542772109. The reversal of 1542772105 is 5012772451.

It can be written as a sum of positive squares in 2 ways, for example, as 211179024 + 1331593081 = 14532^2 + 36491^2 .

It is not a de Polignac number, because 1542772105 - 2¹⁷ = 1542641033 is a prime.

It is a super-2 number, since 2×1542772105² = 4760291535932262050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1542772109) 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, 3148270 + ... + 3148759.

It is an arithmetic number, because the mean of its divisors is an integer number (179465355).

Almost surely, 2^1542772105 is an apocalyptic number.

It is an amenable number.

1542772105 is a deficient number, since it is larger than the sum of its proper divisors (610812155).

1542772105 is an equidigital number, since it uses as much as digits as its factorization.

1542772105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6297048 (or 6297041 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 1542772105 is about 39278.1377486255. The cubic root of 1542772105 is about 1155.4928414028.

The spelling of 1542772105 in words is "one billion, five hundred forty-two million, seven hundred seventy-two thousand, one hundred five".