1370540091 has 16 divisors (see below), whose sum is σ = 1959863040. Its totient is φ = 849270240.

The previous prime is 1370540089. The next prime is 1370540099. The reversal of 1370540091 is 1900450731.

It is not a de Polignac number, because 1370540091 - 2¹ = 1370540089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1370540099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223815 + ... + 229856.

It is an arithmetic number, because the mean of its divisors is an integer number (122491440).

Almost surely, 2^1370540091 is an apocalyptic number.

1370540091 is a deficient number, since it is larger than the sum of its proper divisors (589322949).

1370540091 is a wasteful number, since it uses less digits than its factorization.

1370540091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453746.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1370540091 is about 37020.8061905734. The cubic root of 1370540091 is about 1110.7864704676.

The spelling of 1370540091 in words is "one billion, three hundred seventy million, five hundred forty thousand, ninety-one".