1137192691 has 2 divisors, whose sum is σ = 1137192692. Its totient is φ = 1137192690.

The previous prime is 1137192673. The next prime is 1137192697. The reversal of 1137192691 is 1962917311.

It is a strong prime.

It is an emirp because it is prime and its reverse (1962917311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1137192691 - 2¹¹ = 1137190643 is a prime.

It is a super-3 number, since 3×1137192691³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1137192697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568596345 + 568596346.

It is an arithmetic number, because the mean of its divisors is an integer number (568596346).

Almost surely, 2^1137192691 is an apocalyptic number.

1137192691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137192691 is an equidigital number, since it uses as much as digits as its factorization.

1137192691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 40.

The square root of 1137192691 is about 33722.2877486092. The cubic root of 1137192691 is about 1043.7857254030.

The spelling of 1137192691 in words is "one billion, one hundred thirty-seven million, one hundred ninety-two thousand, six hundred ninety-one".