1397059945 has 16 divisors (see below), whose sum is σ = 1698744960. Its totient is φ = 1102881664.

The previous prime is 1397059933. The next prime is 1397059957. The reversal of 1397059945 is 5499507931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1397059933) and next prime (1397059957).

It is a cyclic number.

It is not a de Polignac number, because 1397059945 - 2¹⁷ = 1396928873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1397059892 and 1397059901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135741 + ... + 145669.

It is an arithmetic number, because the mean of its divisors is an integer number (106171560).

Almost surely, 2^1397059945 is an apocalyptic number.

It is an amenable number.

1397059945 is a deficient number, since it is larger than the sum of its proper divisors (301685015).

1397059945 is a wasteful number, since it uses less digits than its factorization.

1397059945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 1397059945 is about 37377.2650818649. The cubic root of 1397059945 is about 1117.9052963539.

The spelling of 1397059945 in words is "one billion, three hundred ninety-seven million, fifty-nine thousand, nine hundred forty-five".