1203432157 has 2 divisors, whose sum is σ = 1203432158. Its totient is φ = 1203432156.

The previous prime is 1203432143. The next prime is 1203432233. The reversal of 1203432157 is 7512343021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1017546201 + 185885956 = 31899^2 + 13634^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203432157 - 2¹⁵ = 1203399389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203432557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601716078 + 601716079.

It is an arithmetic number, because the mean of its divisors is an integer number (601716079).

Almost surely, 2^1203432157 is an apocalyptic number.

It is an amenable number.

1203432157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203432157 is an equidigital number, since it uses as much as digits as its factorization.

1203432157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1203432157 is about 34690.5196991916. The cubic root of 1203432157 is about 1063.6707190144.

Adding to 1203432157 its reverse (7512343021), we get a palindrome (8715775178).

It can be divided in two parts, 120343 and 2157, that added together give a square (122500 = 350²).

The spelling of 1203432157 in words is "one billion, two hundred three million, four hundred thirty-two thousand, one hundred fifty-seven".