1391450701 has 4 divisors (see below), whose sum is σ = 1391810752. Its totient is φ = 1391090652.

The previous prime is 1391450633. The next prime is 1391450729. The reversal of 1391450701 is 1070541931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1391450701 - 2¹³ = 1391442509 is a prime.

It is a super-2 number, since 2×1391450701² = 3872270106626782802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391400701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174165 + ... + 181978.

It is an arithmetic number, because the mean of its divisors is an integer number (347952688).

Almost surely, 2^1391450701 is an apocalyptic number.

It is an amenable number.

1391450701 is a deficient number, since it is larger than the sum of its proper divisors (360051).

1391450701 is an equidigital number, since it uses as much as digits as its factorization.

1391450701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360050.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1391450701 is about 37302.1541067001. The cubic root of 1391450701 is about 1116.4071467103.

The spelling of 1391450701 in words is "one billion, three hundred ninety-one million, four hundred fifty thousand, seven hundred one".