1213152673 has 8 divisors (see below), whose sum is σ = 1248014592. Its totient is φ = 1178667936.

The previous prime is 1213152671. The next prime is 1213152683. The reversal of 1213152673 is 3762513121.

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 1213152673 - 2¹ = 1213152671 is a prime.

It is a super-3 number, since 3×1213152673³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213152671) 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, 87765 + ... + 100642.

It is an arithmetic number, because the mean of its divisors is an integer number (156001824).

Almost surely, 2^1213152673 is an apocalyptic number.

It is an amenable number.

1213152673 is a deficient number, since it is larger than the sum of its proper divisors (34861919).

1213152673 is a wasteful number, since it uses less digits than its factorization.

1213152673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188591.

The product of its digits is 7560, while the sum is 31.

The square root of 1213152673 is about 34830.3412702201. The cubic root of 1213152673 is about 1066.5269149700.

Adding to 1213152673 its reverse (3762513121), we get a palindrome (4975665794).

The spelling of 1213152673 in words is "one billion, two hundred thirteen million, one hundred fifty-two thousand, six hundred seventy-three".