1151031541 has 4 divisors (see below), whose sum is σ = 1255670784. Its totient is φ = 1046392300.

The previous prime is 1151031517. The next prime is 1151031569. The reversal of 1151031541 is 1451301511.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1451301511 = 11 ⋅131936501.

It is a cyclic number.

It is not a de Polignac number, because 1151031541 - 2¹⁵ = 1150998773 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 (1151034541) 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, 52319605 + ... + 52319626.

It is an arithmetic number, because the mean of its divisors is an integer number (313917696).

Almost surely, 2^1151031541 is an apocalyptic number.

1151031541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1151031541 is a deficient number, since it is larger than the sum of its proper divisors (104639243).

1151031541 is a wasteful number, since it uses less digits than its factorization.

1151031541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104639242.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1151031541 is about 33926.8557488017. The cubic root of 1151031541 is about 1048.0027159987.

The spelling of 1151031541 in words is "one billion, one hundred fifty-one million, thirty-one thousand, five hundred forty-one".