1151511245 has 32 divisors (see below), whose sum is σ = 1490244480. Its totient is φ = 851558400.

The previous prime is 1151511241. The next prime is 1151511247. The reversal of 1151511245 is 5421151511.

It is a happy number.

It is not a de Polignac number, because 1151511245 - 2² = 1151511241 is a prime.

It is a super-2 number, since 2×1151511245² = 2651956294722900050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151511241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 718445 + ... + 720045.

It is an arithmetic number, because the mean of its divisors is an integer number (46570140).

Almost surely, 2^1151511245 is an apocalyptic number.

It is an amenable number.

1151511245 is a deficient number, since it is larger than the sum of its proper divisors (338733235).

1151511245 is a wasteful number, since it uses less digits than its factorization.

1151511245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its digits is 1000, while the sum is 26.

The square root of 1151511245 is about 33933.9246919657. The cubic root of 1151511245 is about 1048.1482843444.

Adding to 1151511245 its reverse (5421151511), we get a palindrome (6572662756).

The spelling of 1151511245 in words is "one billion, one hundred fifty-one million, five hundred eleven thousand, two hundred forty-five".