1203487157 has 4 divisors (see below), whose sum is σ = 1204882560. Its totient is φ = 1202091756.

The previous prime is 1203487127. The next prime is 1203487169. The reversal of 1203487157 is 7517843021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1203487157 - 2¹⁰ = 1203486133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203487157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203487127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696407 + ... + 698132.

It is an arithmetic number, because the mean of its divisors is an integer number (301220640).

Almost surely, 2^1203487157 is an apocalyptic number.

It is an amenable number.

1203487157 is a deficient number, since it is larger than the sum of its proper divisors (1395403).

1203487157 is an equidigital number, since it uses as much as digits as its factorization.

1203487157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395402.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 1203487157 is about 34691.3124139171. The cubic root of 1203487157 is about 1063.6869229464.

The spelling of 1203487157 in words is "one billion, two hundred three million, four hundred eighty-seven thousand, one hundred fifty-seven".