1211064151 has 8 divisors (see below), whose sum is σ = 1346089104. Its totient is φ = 1080193920.

The previous prime is 1211064119. The next prime is 1211064193. The reversal of 1211064151 is 1514601121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211064151 - 2⁵ = 1211064119 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 (1211064451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038066 + ... + 1039231.

It is an arithmetic number, because the mean of its divisors is an integer number (168261138).

Almost surely, 2^1211064151 is an apocalyptic number.

1211064151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1211064151 is a deficient number, since it is larger than the sum of its proper divisors (135024953).

1211064151 is a wasteful number, since it uses less digits than its factorization.

1211064151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077361.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1211064151 is about 34800.3469953965. The cubic root of 1211064151 is about 1065.9145313733.

Adding to 1211064151 its reverse (1514601121), we get a palindrome (2725665272).

The spelling of 1211064151 in words is "one billion, two hundred eleven million, sixty-four thousand, one hundred fifty-one".