1301245987 has 16 divisors (see below), whose sum is σ = 1384959744. Its totient is φ = 1220544000.

The previous prime is 1301245903. The next prime is 1301245991. The reversal of 1301245987 is 7895421031.

It is a cyclic number.

It is not a de Polignac number, because 1301245987 - 2²⁷ = 1167028259 is a prime.

It is a super-2 number, since 2×1301245987² = 3386482237367208338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301245487) 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, 196287 + ... + 202807.

It is an arithmetic number, because the mean of its divisors is an integer number (86559984).

Almost surely, 2^1301245987 is an apocalyptic number.

1301245987 is a deficient number, since it is larger than the sum of its proper divisors (83713757).

1301245987 is a wasteful number, since it uses less digits than its factorization.

1301245987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1301245987 is about 36072.7873472511. The cubic root of 1301245987 is about 1091.7414541179.

The spelling of 1301245987 in words is "one billion, three hundred one million, two hundred forty-five thousand, nine hundred eighty-seven".