1154640629 has 8 divisors (see below), whose sum is σ = 1226738520. Its totient is φ = 1083006976.

The previous prime is 1154640589. The next prime is 1154640637. The reversal of 1154640629 is 9260464511.

It can be written as a sum of positive squares in 4 ways, for example, as 828115729 + 326524900 = 28777^2 + 18070^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154640629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1154640592 and 1154640601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154645629) 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, 110924 + ... + 120885.

It is an arithmetic number, because the mean of its divisors is an integer number (153342315).

Almost surely, 2^1154640629 is an apocalyptic number.

It is an amenable number.

1154640629 is a deficient number, since it is larger than the sum of its proper divisors (72097891).

1154640629 is a wasteful number, since it uses less digits than its factorization.

1154640629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232119.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1154640629 is about 33980.0033696290. The cubic root of 1154640629 is about 1049.0969193467.

The spelling of 1154640629 in words is "one billion, one hundred fifty-four million, six hundred forty thousand, six hundred twenty-nine".