900142903 has 4 divisors (see below), whose sum is σ = 981974088. Its totient is φ = 818311720.

The previous prime is 900142891. The next prime is 900142907. The reversal of 900142903 is 309241009.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 900142903 - 2⁵ = 900142871 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 (900142907) 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, 40915576 + ... + 40915597.

It is an arithmetic number, because the mean of its divisors is an integer number (245493522).

Almost surely, 2^900142903 is an apocalyptic number.

900142903 is a deficient number, since it is larger than the sum of its proper divisors (81831185).

900142903 is a wasteful number, since it uses less digits than its factorization.

900142903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81831184.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 900142903 is about 30002.3816221313. The cubic root of 900142903 is about 965.5404823937.

The spelling of 900142903 in words is "nine hundred million, one hundred forty-two thousand, nine hundred three".