1147202157 has 8 divisors (see below), whose sum is σ = 1533705184. Its totient is φ = 762750288.

The previous prime is 1147202113. The next prime is 1147202201. The reversal of 1147202157 is 7512027411.

It is an interprime number because it is at equal distance from previous prime (1147202113) and next prime (1147202201).

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

It is not a de Polignac number, because 1147202157 - 2⁶ = 1147202093 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 (1147200157) 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, 511483 + ... + 513720.

It is an arithmetic number, because the mean of its divisors is an integer number (191713148).

Almost surely, 2^1147202157 is an apocalyptic number.

It is an amenable number.

1147202157 is a deficient number, since it is larger than the sum of its proper divisors (386503027).

1147202157 is a wasteful number, since it uses less digits than its factorization.

1147202157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025579.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1147202157 is about 33870.3728500293. The cubic root of 1147202157 is about 1046.8392194700.

Adding to 1147202157 its reverse (7512027411), we get a palindrome (8659229568).

The spelling of 1147202157 in words is "one billion, one hundred forty-seven million, two hundred two thousand, one hundred fifty-seven".