1151956487 has 4 divisors (see below), whose sum is σ = 1256679816. Its totient is φ = 1047233160.

The previous prime is 1151956471. The next prime is 1151956489. The reversal of 1151956487 is 7846591511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1151956487 - 2⁴ = 1151956471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151956489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52361648 + ... + 52361669.

It is an arithmetic number, because the mean of its divisors is an integer number (314169954).

Almost surely, 2^1151956487 is an apocalyptic number.

1151956487 is a deficient number, since it is larger than the sum of its proper divisors (104723329).

1151956487 is a wasteful number, since it uses less digits than its factorization.

1151956487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104723328.

The product of its digits is 302400, while the sum is 47.

The square root of 1151956487 is about 33940.4844838726. The cubic root of 1151956487 is about 1048.2833588692.

The spelling of 1151956487 in words is "one billion, one hundred fifty-one million, nine hundred fifty-six thousand, four hundred eighty-seven".