210145342 has 32 divisors (see below), whose sum is σ = 370427904. Its totient is φ = 88413600.

The previous prime is 210145337. The next prime is 210145357. The reversal of 210145342 is 243541012.

It is a super-2 number, since 2×210145342² = 88322129528593928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8988 + ... + 22384.

It is an arithmetic number, because the mean of its divisors is an integer number (11575872).

Almost surely, 2^210145342 is an apocalyptic number.

210145342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210145342 is a deficient number, since it is larger than the sum of its proper divisors (160282562).

210145342 is a wasteful number, since it uses less digits than its factorization.

210145342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13464.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 210145342 is about 14496.3906542284. The cubic root of 210145342 is about 594.5292908759.

Adding to 210145342 its reverse (243541012), we get a palindrome (453686354).

The spelling of 210145342 in words is "two hundred ten million, one hundred forty-five thousand, three hundred forty-two".