1161377190 has 56 divisors (see below), whose sum is σ = 3134304288. Its totient is φ = 309698640.

The previous prime is 1161377179. The next prime is 1161377197. The reversal of 1161377190 is 917731611.

It is a super-2 number, since 2×1161377190² = 2697593954904592200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161377197) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 72366 + ... + 86945.

Almost surely, 2^1161377190 is an apocalyptic number.

1161377190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161377190 is an abundant number, since it is smaller than the sum of its proper divisors (1972927098).

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

1161377190 is an equidigital number, since it uses as much as digits as its factorization.

1161377190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159336 (or 159321 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 1161377190 is about 34078.9845799431. The cubic root of 1161377190 is about 1051.1332254920.

The spelling of 1161377190 in words is "one billion, one hundred sixty-one million, three hundred seventy-seven thousand, one hundred ninety".