1377156542 has 8 divisors (see below), whose sum is σ = 2079415632. Its totient is φ = 684018000.

The previous prime is 1377156527. The next prime is 1377156551. The reversal of 1377156542 is 2456517731.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1377156542.

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, 2279759 + ... + 2280362.

It is an arithmetic number, because the mean of its divisors is an integer number (259926954).

Almost surely, 2^1377156542 is an apocalyptic number.

1377156542 is a deficient number, since it is larger than the sum of its proper divisors (702259090).

1377156542 is a wasteful number, since it uses less digits than its factorization.

1377156542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560274.

The product of its digits is 176400, while the sum is 41.

The square root of 1377156542 is about 37110.0598490490. The cubic root of 1377156542 is about 1112.5710878616.

The spelling of 1377156542 in words is "one billion, three hundred seventy-seven million, one hundred fifty-six thousand, five hundred forty-two".