1371969045 has 24 divisors (see below), whose sum is σ = 2379926016. Its totient is φ = 731148768.

The previous prime is 1371969031. The next prime is 1371969073. The reversal of 1371969045 is 5409691731.

It is not a de Polignac number, because 1371969045 - 2⁴ = 1371969029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50364 + ... + 72666.

It is an arithmetic number, because the mean of its divisors is an integer number (99163584).

Almost surely, 2^1371969045 is an apocalyptic number.

1371969045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1371969045 is a deficient number, since it is larger than the sum of its proper divisors (1007956971).

1371969045 is a wasteful number, since it uses less digits than its factorization.

1371969045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23681 (or 23678 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 1371969045 is about 37040.1004993237. The cubic root of 1371969045 is about 1111.1723795122.

The spelling of 1371969045 in words is "one billion, three hundred seventy-one million, nine hundred sixty-nine thousand, forty-five".